Juventus' record-breaking 43-match undefeated run came to an end on Sunday when Napoli won the Italian Cup 2-0.
Serie A champions Juventus saw their hopes of a league and cup double shattered by two second-half goals, with defeat particularly painful for skipper Alessandro Del Piero, who was playing the last match of his 19-year career with the club.
Uruguayan striker Edinson Cavani opened the scoring from the penalty spot in the 62nd minute when goalkeeper Marco Storari brought down Ezequiel Lavezzi.
It was Cavani's 33rd goal of the season.
Seven minutes from time, Napoli's first Italian Cup triumph since Diego Maradona's team won the 1987 double was assured when Goran Pandev launched a lightning counter-attack before playing in Marek Hamsik, who slotted the ball into the corner.
Juventus striker Fabio Quagliarella was sent off in the last minute for elbowing Salvatore Aronica in the face.